05-21-2024 08:04 AM
Current setup has wires on the dead thermostat R, C, E1, E2 which go to the furnace board in R C 1 and 2.
AC coming into the house connects to the furnace board is C and Y1
where am I hooking E1 and E2 up to on the nest plate?
I have pics if needed
05-24-2024 03:51 PM
Hi @SammyLJ,
Thanks for reaching out to the community! I'm happy to help you with your wiring configuration.
I really appreciate you mentioning the wire labels (1 and 2); they indicate a proprietary system. These systems typically only work with thermostats made by the same manufacturer. However, some may also be compatible with standard heating system wires.
In this case, I recommend contacting a local professional to see if your proprietary system can be rewired to work with Nest thermostats. For reference, this article, Identify a Thermostat Wire, can help you learn more about standard heating system wires.
Let me know if you have any further questions.
Best regards,
Jenniffer